Question

part a
the number of protons in the nucleus of an atom:
identifies the atom as a particular element.
is given the symbol \z.\
is the same for all isotopes of an element.
is called the atomic number.
all of the above
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Explanation:

• The number of protons in an atom's nucleus identifies the atom as a particular element. For example, hydrogen has 1 proton, oxygen has 8 protons.
• The symbol for the number of protons is \(Z\).
• Isotopes of an element have the same number of protons. For instance, carbon - 12 and carbon - 14 are isotopes of carbon and both have 6 protons.
• The number of protons is called the atomic number.

Answer:

all of the above